Quick answers
- Which hospitals does Riaz Sirajuddin work at?
- Medicare's official clinician data lists Riaz Sirajuddin at 5 hospitals: Adena Pike Medical Center, Adena Regional Medical Center, Carnegie Tri-County Municipal Hospital, SSM Health St Anthony Hospital - Oklahoma City and The Physicians' Hospital in Anadarko. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Riaz Sirajuddin see patients?
- Medicare's clinician data lists 2 practice locations, including Oklahoma City, OK and Chillicothe, OH. Call before your visit to confirm the address.
- What is Riaz Sirajuddin's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does Riaz Sirajuddin accept Medicare assignment?
- Yes. Medicare's clinician data says Riaz Sirajuddin accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Riaz Sirajuddin?
- (405) 691-4665, as listed in official Medicare / NPI Registry data.
- What is Riaz Sirajuddin's NPI number?
- 1235186099. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Riaz Sirajuddin works
Medicare's Facility Affiliation Data lists Riaz Sirajuddin at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Adena Pike Medical CenterWaverly, OH · Critical Access Hospital · CCN 361334
- Adena Regional Medical CenterChillicothe, OH · Acute Care Hospital · CCN 360159
- Carnegie Tri-County Municipal HospitalCarnegie, OK · Critical Access Hospital · CCN 371334
- SSM Health St Anthony Hospital - Oklahoma CityOklahoma City, OK · Acute Care Hospital · CCN 370037
- The Physicians' Hospital in AnadarkoAnadarko, OK · Critical Access Hospital · CCN 371314
Practice locations
Addresses where Riaz Sirajuddin is enrolled with Medicare (CMS data updated 2026-10-02).
- 10413 Greenbriar PkwyOklahoma City, OK 73159 (405) 691‑4665
- 272 Hospital Rd, Suite 125Chillicothe, OH 45601 (740) 779‑4570
Group practices
Medicare enrollment lists Riaz Sirajuddin as a member of these groups (CMS data updated 2026-10-02).
- Adena Medical Group LLC386 clinicians in the group
- Riaz A. Sirajuddin MD PC3 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Oklahoma →
Other cardiologists in Oklahoma City
Clinicians with the same Medicare primary specialty in Oklahoma City, OK — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Indiana University School Of Medicine |
| Graduation year | 1991 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1235186099 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians